Gas burner



P. MOQUIST. GAS BURNER.

APPLICATION FILED JAN. 30. 1922.

Patented 0015. 24,1922.

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GAS BURNER. I

APPLICATION FILED IAN- 3&1922- Patented Oct. 24, 1922:.

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Patented 24, 1922.

s it an I PETER MOQUIST, MINNEAPOLIS, MINNESOTA.

ens BURNER.

application filed January 30, 1922. Serial No. 532,625..

To all whom it m concern Befitfknown that 1, PE ER Mo UrsT, a citizen of the 'United States, residingat Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Gas Burners; and I do hereby declare the iollowing to be a lull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

lhis invention relates to a gas burner of the 'type commonly used in stoves or furnaces. In burners as heretoforeconstructed,

the flames do not entirely consumethe' fuel obtained." 1

" It is a further object of the invention to provide a mixing-"chamber having ineans for conducting air and gas therei-nto and equipped with fuel orfiame apertures, to gethenwith means for directing additional air thereto, the chamber being so constructed that this additional air will be heated before reaching the place of ignition. 1

- It is a further object to provide such a mixing chamber'co'mprising a plurality of radially extending arms having a flaring formation both" outwardly and upwardly andtdprovide regulatable means for directing air upwardly between said arms.

These and other objects and advantages of the invention will fully appear from the following description made in connection with the accompanying drawings in which like reference characters refer to the same parts throughout the dilferent views' and in Figl is a view partly in front elevation and'partly in central section of the burner;

Fig. 2 is a horizontal section taken on the line'22of Fig. l; M

' Fig. 3 is a plan *view of the burner with the upper part of the wall being removed and a portion of the top of the mixing chamber being broken away; and

Fig. 4 is a top plan viewof the burner.

Reterringto the drawings, a gas supply pipe 1 'is shown having therein a turn-on or controlling valve 2, the end of the pipe 1 extending upwardly and being provided with the usual contracted tip or nozzle. The tube 3 extends a short distance below the tip or nozzle surrounds the same, and is provided with inwardly extending arms connected thereto and to a hub 4. firmly secured in any suitablevmanner to the pipe 1 and forming a support for said tube 3, as well as for the burner parts attached thereto. The tube 3 extends upwardly some distance from the end or pipe 1 and has its exterior diameter somewhat reduced adja' cent its upper end to form a shoulder on which is seated a plate 5 having a central annular portion from which extend sectorlike arms provided at their outer ends with upturned semi cylindrical flanges A member 6 formed as a short cylindrical member is disposed about the bar 3, spaced on and intermediately above the plate 5 and has a bottom portion therein through which are formeda plurality of openings 6 of sector-like shape. These openings correspond in numbers to the arms of the mem- I here 5. The member 6 is adapted to be turned so that the openings 6 extend more or, less over the arms of the member 5 to regulate the amount of air which can pass upwardly through said openings. The member 6 is provided at its lower portion with downwardly extending lugs 6 adjacent" the sides or the opening therein which form stop members adapted to contact the arms of the member 5 and determine the position of the member 6 when the openings 6 are entirely covered, as shown in Fig. 2.

Secured to the upper portion of the tube 3 is a member 7 having a plurality of radially extending arms, each of which has an outwardly,'as well as an upwardly flaring formation. The member 7 is of comparatively short height and is closed at the bottom except for the open receiving tube 8. A plate 8 shaped to fit over the top of member 7 extends thereover, forms a cover therefor and has depending tongues at its outer edges disposed centrally of the arms of said mem berwhich fit into recesses 7 formed in the top edges of said arms which prevent rotation of the member SQ The sides of the arms of the member 7 are formed along their top edges witha plurality of V-shaped grooves 7 and a similar groove is also formed through the edge of the member 7 substantures 10 member 9 is of rounded and upwardly curved shape and is provided in its upper edge with a plurality of curved recesses adapted to receive similarly shaped lugs 10 of atop casing 10 shaped to fit upon and be supported by the upper edge of the casing 9 and which is provided with a flat top portion having therein a plurality of aper- The said top portion is also formed on its exterior surface with a cross shaped rib 11.. i

" The operation of the burner is asfollows.

The gas will be supplied through the pipe l and will pass upwardly through the tube 3. A certain amount of air is also drawn up through the bottom of the tube 3 and will mix with the gas, and the mixture will pass into the chamber 7 and will issue through the openings formed by the notches 7 and the cover 8 as well as through the opening formed centrally between the arms. These openings or passages are so directed that they will intersect or converge along the line extending.substantially cent 'ally between the arms of member '7 and substantially in alinement with the axis of the opening between said arms. Air will also be admitted through the opening 6 and the member 6,

the amount of this air being regulated by turning the member'G 011 member 5. The space between the arms of member 5 1s d1sposed directly under the arms of member 7 so that the air will {be directed upwardly against the arms of member 7. The fuel mixture emerging through the openings 7* will be ignited and the flames being directed as stated by said openings, will then focus along the line extending centrally between said arms. The sides of the arms of member 7 will be heated and'as the air rises therebetween it will contact with the outwardly flaring walls of these arms and be heated there-.

by. This air will mix with the fuel mixture issuin from the 0 oenin 's in said arms and the flame will extend upwardly in the combustion chamber formed by casings 9 and 10 and issue from the openings in the top of the casing 10. Some of the mixture in member 7 will also issue through the hole 7 and flames will form projecting upwardly from these openings. The burning mixture is confined in the casings 9 and 10'and the flames will be maintained at suflicient-temperature to complete burning all of the combustible mixture. With this construction, therefore, the flames are converged at their initial ignition point and a high and concentrated zone of temperature is produced and -.a. high degree of temperature is also maintained in the combustion chamber. The flames are thus not allowed to become cooled off by contact with cold air surrounding the same and the combustible material cannot escape unburned. The amount of air required for the amountbf fuel can be varied to suit the quantity and pressure of the latter so that a very efficient combustion can at all times be maintained.

WVhile the burner is shown as supported from the pipe 1, it may, of course, be sup ported by surrounding grid or grate, if de sired. This structure depends upon the use to which the burner is put.

From the above description it is seen that applicant has provided a simple and eflicient form of used to maintain an'eflicient combustion of the fuel under various degrees of pressure of the gas. The parts of the burner are easily made and the same is easily and quickly assembled.

It will, of course, be understood that various changes may bemade in the form, details and arrangement of the parts without departing from the scope ofapplicants invention, which, generally stated, consists in the matter shown and described and set forth in the appended claims.

'What is claimed is:

1. Aburner comprising a mixing chamher having a'plurality of spaced arms, each upwardly flaring in cross section and having laterally directed openings'in. the sides thereof, means for directing air upwardly between said arms whereby the air will strike the flaring sides thereofv and be heated as it rises.

2. A burner comprising a mixing chamher having a plurality of radially extending outwardly flaring arms, said arms also flaring upwardly and each having .a plurality of 'laterally directed apertures adjacent the upper edge thereof forming flame nozzles, means for conducting air and gas intotheiinterior'of said chamber, andmeans for conducting adeterminedv amount of air into the space between the arms of said chamber.

3. The structure set forth in claim 2, and a hood having a combustion? chamber surrounding and extending above said mixing chamber and provided with plurality of openings in the top thereof.

4. A burner having a mixing chamber formed with a plurality of radially extending outwardly flaring arms, each having a plurality of laterally directed openings in the sides thereof, means for directing air gas burner and one" which can be and gas into said chamber, and means for directing air upwardly between the sides of said arms.

5. A burner having a mixing chamber comprising a comparatively fiat chamber having radially extending arms, a central opening in the bottom of said chamber, an air and gas inlet tube opening thereinto, a plate shaped similarly to said chamber and covering the same, notches formed at the top of each side of each of said arms forming with said plate fuel passages, said passages directed along lines extending centrally between said arms.

6. A burner comprising a mixing chamher having radially extending outwardly flaring arms, each of said arms having a plurality oi laterally directed openings therethrough forming fuel passages and flame nozzles, said passages being directed to converge along a line extending centrally between said arms, means for conducting air and fuel into the said chamber, and means for directing a determined amount of air upwardly between said arms.

7. The structure set forth in claim 6, said chamber also having an outwardly directed opening therethrough disposed substantially centrally between said arms.

8. The structure set forth in claim 6, said chamber also having a plurality of circumferentially arranged holes through the top thereof.

9. A burner comprising a base supply pipe, a tube supported from said pipe surrounding the same at its lower end and extending upwardly therefrom, a plate having sector shaped arms secured adjacent the upper end of said tube, a short cylindrical member having sector shaped openings through its lower side rota-tably mounted upon said plate, a mixing chamber having radially extending outwardly flaring arms supported at the upper end of said tube, the arms thereof being disposed over the spaces between the arms of said plate, and a closed substantially cylindrical chamber supported upon said plate surrounding said mixing chamber and extending thereabove and having a plurality of openings through its top portion.

In testimony whereof I aiiiX my signature.

PETER MOQUIST. 

